Heroku stopped their free tier, so my heroku app is down now, but I have uploaded on Render.
So now this is the updated and working link Support Desk

• Frontend Repo
• Backend Repo

• Support desk is a fully-functional MERN Stack App
• RESTful API is implemented.
• In this one can create, view, close tickets, add notes and do all crud operations.
• It’s authenticated by the JSON web token.

• Node v10+
• Configured .env file
• MongoDB Account

1. Confirm .env configuration

Ensure the API keys are configured in .env in this directory. It should include the following keys:

Backend .env configuration

# MongoDB Connection String - see https://www.mongodb.com/docs/manual/reference/connection-string/
MONGO_URI = 'mongodb+srv://.......' 

# Port 
PORT = 8000 or any free port

# JWT Secret
JWT_SECRET = xxxxxx 

# Path of front-end implementation. 
REACT_FRONTEND_URL = 'https://front_end_app_url.com'

Frontend .env configuration

# Path of backend-end implementation. 
REACT_APP_BASE_URL = 'https://backend_end_app_url.com'

2. Install dependencies and start the server

npm install
npm start

• Live Frontend
• Live Backend